The original article describing 138 cases with their clinical and pathological features presented in 1979. The tumor occurred from 5 months to 70 years of age (median 31 years) with a 3:1 male predominance. It occurred in tendons and tendon sheaths of the fingers (49%), hands (21%), and wrist (12%). Symptoms were present from 1 week to 6 years (median 5 months).10/138 recurred once and 3/138 recurred twice. Local excision was recommended. Typical fibrocollagenous areas transitioned to more celluar areas of the tumor.